Catalytic effect of pyrite on the leaching of chalcopyrite concentrates in chemical, biological and electrobiochemical systems

Minerals Engineering

Volumn 34, Issue , 2012, Pages 11-18

  Ahmadi, Ali ^a   Ranjbar, Mohammad ^b   Schaffie, Mahin ^b  

^a ISFAHAN UNIVERSITY OF TECHNOLOGY   (Iran)

^b SHAHID BAHONAR UNIVERSITY OF KERMAN   (Iran)

Author keywords

Chalcopyrite; Electro bioleaching; Galvanic interactions; Moderate thermophiles; Pyrite

Indexed keywords

AG/AGCL; ANODIC DISSOLUTION; CATALYTIC EFFECTS; CHALCOPYRITE; COPPER CONCENTRATES; COPPER EXTRACTION; COPPER RECOVERY; COPPER SULFIDES; DISSOLUTION RATES; ELECTRO-BIOLEACHING; ELECTROCHEMICAL SYSTEMS; ELECTRON TRANSFER; FERROUS IRON; GALVANIC INTERACTION; INITIAL PH; LEACHING EXPERIMENTS; LEACHING OF CHALCOPYRITE; LOW LEVEL; MIXED CULTURES; MODERATE THERMOPHILES; MODERATELY THERMOPHILIC; NUTRIENT MEDIUM; OXIDATION REDUCTION POTENTIAL; PULP DENSITY; PYRITIC CHALCOPYRITES; SEM/EDS; SHAKE FLASKS; STIRRED TANK; YEAST EXTRACTS;

BIOCHEMISTRY; BIOLEACHING; BOTTLES; COPPER; COPPER DEPOSITS; COPPER METALLURGY; COPPER SMELTING; DISSOLUTION; EXPERIMENTS; MICROORGANISMS; OPTICAL MICROSCOPY; PH EFFECTS; PYRITES; SULFUR;

COPPER COMPOUNDS;

BIOCHEMISTRY; BOTTLES; COPPER COMPOUNDS; DEPOSITS; DISSOLVING; LEACHING; METALLURGY; MICROORGANISMS; PYRITE; SMELTING;

EID: 84862519493     PISSN: 08926875     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.mineng.2012.03.022     Document Type: Article

References (23)

1. A. Ahmadi, M. Schaffie, Z. Manafi, and M. Ranjbar Electrochemical bioleaching of high grade chalcopyrite flotation concentrate in a stirred tank reactor Hydrometallurgy 104 2010 99 105
2. Ahmadi, A.; Ranjbar, M.; Schaffie, M.; Manafi, Z. 2010b. Optimization of copper concentrate bioleaching by a mixed culture of moderately thermophilic bacteria. In: Proceeding of Copper 2010 Conference, GDMB, Hamburg. pp. 2575-2589.
3. A. Ahmadi, M. Schaffie, J. Petersen, A. Schippers, and M. Ranjbar Conventional and electrochemical bioleaching of chalcopyrite concentrates by moderately thermophile bacteria at high pulp density Hydrometallurgy 106 1-2 2011 84 92
4. V.K. Berry, L.E. Murr, and J.B. Hiskey Galvanic interaction between chalcopyrite and pyrite during bacterial leaching of low-grade waste Hydrometallurgy 3 4 1978 309 326 (Pubitemid 9416528)
5. E.M. Cordoba, J.A. Munoz, M.L. Blázquez, F. González, and A. Ballester Leaching of chalcopyrite with ferric ion. Part II: Effect of redox potential Hydrometallurgy 93 2008 88 96
6. E.M. Cordoba, J.A. Munoz, M.L. Blázquez, F. González, and A. Ballester Leaching of chalcopyrite with ferric ion. Part IV: The role of redox potential in the presence of mesophilic and thermophilic bacteria Hydrometallurgy 93 2008 106 115
7. Dixon, D.G.; Mayne, D.D.; Baxter, K.G. 2007. GalvanoxTM - a novel galvanically assisted atmospheric leaching technology for copper concentrates. In: International Conference of Copper 2007, Toronto, Canada.
8. M. Gericke, Y. Govender, and A. Pinches Tank bioleaching of low-grade chalcopyrite concentrates using redox control Hydrometallurgy 104 3-4 2010 414 419
9. N. Hiroyoshi, M. Hirota, T. Hirajima, and M. Tsunekawa A case of ferrous sulfate addition enhancing chalcopyrite leaching Hydrometallurgy 47 1997 37 45 (Pubitemid 127413010)
10. N. Hiroyoshi, H. Miki, T. Hirajima, and M. Tsunekawa Enhancement of chalcopyrite leaching by ferrous ions in acidic ferric sulfate solutions Hydrometallurgy 60 2001 185 197 (Pubitemid 32279513)
11. N. Hiroyoshi, H. Kitagawa, and M. Tsunekawa Effect of solution composition on the optimum redox potential for chalcopyrite leaching in sulfuric acid solutions Hydrometallurgy 91 2008 144 149
12. D. Majuste, V.S.T. Ciminelli, K. Osseo-Asare, and M.S.S. Dantas Quantitative assessment of the effect of pyrite inclusions on chalcopyrite electrochemistry under oxidizing conditions Hydrometallurgy 113-114 2012 167 176
13. A.P. Mehta, and L.E. Murr Fundamental studies of the contribution of galvanic interaction to acid-bacterial leaching of mixed metal sulfides Hydrometallurgy 9 1983 235 256 (Pubitemid 13511419)
14. K.A. Natarajan Electrochemical aspects of bioleaching of base-metal sulfides H.L. Ehrlich, C.L. Brierley, Microbial Mineral Recovery 1990 McGraw-Hill New York pp. 79-105
15. P.R. Norris, and D.W. Barr Growth and iron oxidation by acidophilic moderate thermophiles FEMS Microbiology Letters 28 1985 221 224 (Pubitemid 15014053)
16. E. Peters The electrochemistry of sulfide minerals. Trends in electrochemistry J.O.M. Bockris, D.A. Rand, B.J. Welch, Trends in Electrochemistry 1977 Plenum Press pp. 267-290
17. Peters, E. 1986. Leaching of sulfides. In: Somasundaran, P. (Ed.), Advances in Mineral Processing, Arbiter Symposium, SME-AIME, New Orleans, Louisiana, pp. 445-462.
18. J. Petersen, and G. Dixon Competitive bioleaching of pyrite and chalcopyrite Hydrometallurgy 83 1-4 2006 40 49 (Pubitemid 44137398)
19. Pinches, A.; Myburgh, P.J.; Merwe, C. 2001. Process for the Rapid Leaching of Chalcopyrite in the Absence of Catalysis. Patent no: US 6, 277, 341 B1.
20. Z. Sadowski, E. Jazdzyk, and H. Karas Bioleaching of copper ore flotation concentrates Minerals Engineering 16 1 2003 51 53
21. A. Sandstrom, A. Shchukarev, and J. Paul XPS characterisation of chalcopyrite chemically and bioleached at high and low redox potential Minerals Engineering 18 5 2005 505 515 (Pubitemid 40339833)
22. K.A. Third, R. Cord-Ruwisch, and H.R. Watling Control of the redox potential by oxygen limitation improves bacterial leaching of chalcopyrite Biotechnology and Bioengineering 78 4 2002 433 441 (Pubitemid 34712363)
23. Tshilombo, A.F. 2004. Mechanism and Kinetics of Chalcopyrite Passivation and Depassivation During Ferric and Microbial Leaching. PhD thesis, University of British Columbia, Vancouver, British Columbia, Canada.